APA引文

Medina, S. (2010). Helping Around the World. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Medina, Sarah. Helping Around the World. Oxford: Oxford University Press, 2010.

MLA引文

Medina, Sarah. Helping Around the World. Oxford: Oxford University Press, 2010.

警告:这些引文格式不一定是100%准确.